25287440

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{7351}}^1$

素因数の和:7407

約数の個数: 40

約数和(自身を含む): 60168768

約数和(自身を除く): 34881328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 7351, 14702, 29404, 36755, 58808, 73510, 117616, 147020, 294040, 316093, 588080, 632186, 1264372, 1580465, 2528744, 3160930, 5057488, 6321860, 12643720, 25287440]

約数ペア:

[(1, 25287440), (2, 12643720), (4, 6321860), (5, 5057488), (8, 3160930), (10, 2528744), (16, 1580465), (20, 1264372), (40, 632186), (43, 588080), (80, 316093), (86, 294040), (172, 147020), (215, 117616), (344, 73510), (430, 58808), (688, 36755), (860, 29404), (1720, 14702), (3440, 7351)]